<template>
    <div class="app-container">
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
            <el-form-item label="部署时间">
                <el-date-picker v-model="daterangeDeployTime" style="width: 360px" value-format="yyyy-MM-dd HH:mm:ss" type="datetimerange" range-separator="-" start-placeholder="开始日期" end-placeholder="结束日期"></el-date-picker>
            </el-form-item>
            <el-form-item label="流程类型" prop="bpmnType">
                <el-select v-model="queryParams.bpmnType" placeholder="请选择流程类型" clearable>
                    <el-option v-for="dict in dict.type.car_flow_audit_type" :key="dict.value" :label="dict.label" :value="dict.value" />
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
                <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
            </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
            <el-col :span="1.5">
                <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd" v-hasPermi="['flow:bpmnInfo:add']">流程定义部署</el-button>
            </el-col>
            <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table v-loading="loading" :data="bpmnInfoList">
            <el-table-column label="流程名称" align="center" prop="bpmnLabel" />
            <el-table-column label="流程类型" align="center" prop="bpmnType">
                <template slot-scope="scope">
                    <dict-tag :options="dict.type.car_flow_audit_type" :value="scope.row.bpmnType" />
                </template>
            </el-table-column>
            <el-table-column label="流程定义的key" align="center" prop="processDefinitionKey" />
            <el-table-column label="部署时间" align="center" prop="deployTime" width="180">
                <template slot-scope="scope">
                    <span>{{ parseTime(scope.row.deployTime, '{y}-{m}-{d}') }}</span>
                </template>
            </el-table-column>
            <el-table-column label="版本号" align="center" prop="version" />
            <el-table-column label="描述信息" align="center" prop="info" />
            <el-table-column label="流程文件" align="center" prop="bpmnFile">
                <template slot-scope="scope">
                    <el-button size="mini" type="text" @click="handlePreview(scope.row)">查看</el-button>
                </template>
            </el-table-column>
            <el-table-column label="流程图" align="center" prop="bpmnImg">
                <template slot-scope="scope">
                    <el-button size="mini" type="text" @click="handleImage(scope.row)">查看</el-button>
                </template>
            </el-table-column>
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
                <template slot-scope="scope">
                    <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)" v-hasPermi="['flow:bpmnInfo:remove']">撤销</el-button>
                </template>
            </el-table-column>
        </el-table>

        <pagination v-show="total>0" :total="total" :page.sync="queryParams.pageNum" :limit.sync="queryParams.pageSize" @pagination="getList" />

        <!-- 添加或修改流程定义对话框 -->
        <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
            <el-form ref="form" :model="form" :rules="rules" label-width="100px">
                <el-form-item label="流程类型" prop="bpmnType">
                    <el-select v-model="form.bpmnType" placeholder="请选择流程类型">
                        <el-option v-for="dict in dict.type.car_flow_audit_type" :key="dict.value" :label="dict.label" :value="parseInt(dict.value)" />
                    </el-select>
                </el-form-item>
                <el-form-item label="流程定义文件" prop="bpmnFile">
                    <el-upload ref="upload" :limit="1" :on-change="handleChange" :action="uploadUrl" :file-list="fileList" :auto-upload="false">

                        <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
                        <div slot="tip" class="el-upload__tip">只能上传bpmn/xml/zip文件,且不超过5M</div>
                    </el-upload>
                </el-form-item>
                <el-form-item label="描述信息" prop="info">
                    <el-input type="textarea" v-model="form.info" placeholder="请输入描述信息" />
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button type="primary" @click="submitForm">确 定</el-button>
                <el-button @click="cancel">取 消</el-button>
            </div>
        </el-dialog>
        <!-- 预览界面 -->
        <el-dialog :title="preview.title" :visible.sync="preview.open" width="80%" top="5vh" append-to-body class="scrollbar">
            <pre><code class="hljs" v-html="highlightedCode('xml')"></code></pre>
        </el-dialog>
        <!-- 预览界面 -->
        <el-dialog :title="bpmnImage.title" :visible.sync="bpmnImage.open" width="80%" top="5vh" append-to-body class="scrollbar">
            <img :src="bpmnImage.data">
        </el-dialog>
        <!-- 流程图设计 -->
        <el-dialog title="流程图设计" :visible.sync="bpmnDesigner" width="1200px" append-to-body>
            <vue-bpmn style="overflow: hidden; height: 700px;" product="activiti" />
        </el-dialog>
    </div>
</template>

<script>
import {
    listBpmnInfo,
    getBpmnInfo,
    delBpmnInfo,
    deployBpmn,
    getBpmnFile,
} from "@/api/flow/bpmnInfo";

import hljs from "highlight.js/lib/highlight";
import "highlight.js/styles/github-gist.css";

hljs.registerLanguage("xml", require("highlight.js/lib/languages/xml"));

export default {
    name: "BpmnInfo",
    dicts: ["car_flow_audit_type"],
    data() {
        return {
            bpmnDesigner: false,
            bpmnImage: {
                title: "流程图",
                open: false,
                data: null,
            },
            preview: {
                title: "流程文件",
                open: false,
                code: "<h1>这是一个测试的代码块</h1>",
            },
            // 文件上传地址
            uploadUrl: "",
            // 文件上传列表
            fileList: [],
            // 遮罩层
            loading: true,
            // 选中数组
            ids: [],
            // 非单个禁用
            single: true,
            // 非多个禁用
            multiple: true,
            // 显示搜索条件
            showSearch: true,
            // 总条数
            total: 0,
            // 流程定义表格数据
            bpmnInfoList: [],
            // 弹出层标题
            title: "",
            // 是否显示弹出层
            open: false,
            // 描述信息时间范围
            daterangeDeployTime: [],
            // 查询参数
            queryParams: {
                pageNum: 1,
                pageSize: 10,
                bpmnType: null,
                deployTime: null,
            },
            // 表单参数
            form: {
                bpmnType: null,
                bpmnFile: null,
                info: null,
            },
            // 表单校验
            rules: {
                bpmnType: [
                    {
                        required: true,
                        message: "请选择审核类型",
                        trigger: "change",
                    },
                ],
                info: [
                    {
                        required: true,
                        message: "请输入备注信息",
                        trigger: "blur",
                    },
                ],
            },
        };
    },
    created() {
        this.getList();
    },
    methods: {
        handleImage(row) {
            getBpmnFile(row.id, "image").then((resp) => {
                this.bpmnImage.data = resp;
                this.bpmnImage.open = true;
            });
            this.bpmnImage.open = true;
        },
        handlePreview(row) {
            // 发送请求到后端获取 xml 代码
            getBpmnFile(row.id, "xml").then((resp) => {
                this.preview.code = resp;
                this.preview.open = true;
            });
            this.preview.open = true;
        },
        /** 高亮显示 */
        highlightedCode(language) {
            const result = hljs.highlight(
                language,
                this.preview.code || "",
                true
            );
            return result.value || "&nbsp;";
        },
        handleBeforeUpload(file) {
            // 1.获取文件后缀
            let fileNameArr = file.name.split(".");
            let fileExt = fileNameArr[fileNameArr.length - 1];
            // 2.判断是否为允许的后缀类型
            if (["bpmn", "zip"].indexOf(fileExt) < 0) {
                // 3. 如果类型不匹配,提示错误信息
                this.$modal.msgError("文件类型不匹配");
                return false;
            }
            return true;
        },
        handleChange(file, fileList) {
            this.fileList = fileList;
        },
        /** 查询流程定义列表 */
        getList() {
            this.loading = true;
            this.queryParams.params = {};
            if (
                null != this.daterangeDeployTime &&
                "" != this.daterangeDeployTime
            ) {
                this.queryParams.params["beginDeployTime"] =
                    this.daterangeDeployTime[0];
                this.queryParams.params["endDeployTime"] =
                    this.daterangeDeployTime[1];
            }
            listBpmnInfo(this.queryParams).then((response) => {
                this.bpmnInfoList = response.rows;
                this.total = response.total;
                this.loading = false;
            });
        },
        // 取消按钮
        cancel() {
            this.open = false;
            this.reset();
        },
        // 表单重置
        reset() {
            this.form = {
                id: null,
                bpmnLabel: null,
                bpmnType: null,
                processDefinitionKey: null,
                deployTime: null,
                version: null,
                info: null,
            };
            this.resetForm("form");
        },
        /** 搜索按钮操作 */
        handleQuery() {
            this.queryParams.pageNum = 1;
            this.getList();
        },
        /** 重置按钮操作 */
        resetQuery() {
            this.daterangeDeployTime = [];
            this.resetForm("queryForm");
            this.handleQuery();
        },
        // 多选框选中数据
        handleSelectionChange(selection) {
            this.ids = selection.map((item) => item.id);
            this.single = selection.length !== 1;
            this.multiple = !selection.length;
        },
        /** 新增按钮操作 */
        handleAdd() {
            this.reset();
            this.open = true;
            this.title = "添加流程定义";
        },
        /** 修改按钮操作 */
        handleUpdate(row) {
            this.reset();
            const id = row.id || this.ids;
            getBpmnInfo(id).then((response) => {
                this.form = response.data;
                this.open = true;
                this.title = "修改流程定义";
            });
        },
        /** 提交按钮 */
        submitForm() {
            this.$refs["form"].validate((valid) => {
                if (valid) {
                    if (this.fileList.length === 0) {
                        this.$modal.msgError("请选择要部署的文件");
                        return false;
                    }
                    if (!this.handleBeforeUpload(this.fileList[0])) {
                        //文件上传之前的判断
                        return false;
                    }
                    // 提交数据
                    deployBpmn({
                        ...this.form,
                        bpmnFile: this.fileList[0].raw, // 二进制文件数据
                    }).then(() => {
                        this.$modal.msgSuccess("部署流程定义成功");
                        this.open = false; // 关闭弹窗
                        this.getList(); // 刷新表格
                    });
                }
            });
        },
        /** 删除按钮操作 */
        handleDelete(row) {
            const ids = row.id || this.ids;
            this.$modal
                .confirm('是否确认撤销流程定义编号为"' + ids + '"的数据项？')
                .then(function () {
                    return delBpmnInfo(ids);
                })
                .then(() => {
                    this.getList();
                    this.$modal.msgSuccess("撤销成功");
                })
                .catch(() => {});
        },
        /** 导出按钮操作 */
        handleExport() {
            this.download(
                "flow/bpmnInfo/export",
                {
                    ...this.queryParams,
                },
                `bpmnInfo_${new Date().getTime()}.xlsx`
            );
        },
    },
};
</script>
